John baeumle



(No Model.)

J' BAEUMLE.

BUNG.

No. 482,714. Patented Sept. 20, 1892.

x Semin! l UNITED STATES PATENT OFFICE.

JOI-IN BAEUMLE, OF MILVAUKEE, VISOONSIN, ASSIGNOR OF ONE-FOURTH TO MICHAEL POETZEL, OF SAME PLACE.

BUNG.

SPECIFICATION forming part of Letters Patent No. 482,714, dated September 20, 1892.

Application filed April 30, 1892. Serial No. 431,226. (No model.)

To all whom it may concern: ing tapering portions 11 and 12, the former Be it known that I, JOHN BAEUMLE, of Milregistering with the disk 3. waukee, in the county of Milwaukee and State The numeral 13 indicates a collar of frustoof Wisconsin, have invented a new and use-` conical shape, the truncated apex of which be- 5; 5 5 ful Improvement in Bungs, of which the folingprovided with acentral aperture through lowing is a description, reference being had which the bolt 5 passes, the plane portion 7 to the accompanying drawings, which are a of said bolt when in the position illustrated part of this specification. in Fig. 2 registering therewith.

My invention has relation to improvements The outer face of disk 3 and inner face of 6o `xo in bungs; and it consists particularly in cercollar 13 are provided with a series of radial tain improvements upon the bung shown and ribs 14 and 15, respectively, which are adaptdescribed in my application for Letters Pated to take into corresponding grooves formed ent filed January 27, 1892, Serial No. 419,453, in the respective contiguous surfaces of the l' as will hereinafter more fully appear. ring 10 when the parts are adjusted together, 65 I5 In the accompanying drawings, Figure 1 and thereby hold the disk and collar rigid represents a fragment of a stave in which my with the rubber ring. improved bung is inserted. Fig. Zisatrans- A transverse pin 16 intersects the plane verse section on line 2 2 of Fig. 1. Fig. 3 is portion 6 of the bolt and is adapted to coact a view of the inner face of the inner disk. with ribs has will hereinafter more fully ap- 7o 2o Fig. 4 is a similar view of the frusto-conical pear.

collar. Fig. 5 is an edge view of a fragment My improved spanner is indicated by the of a tool employed in connection with my imnumeral 17, the operating end thereof being K proved bung, and Fig. 6 is a face view of the bifureated and provided with a flange 18,

same. projecting out at right angles, the innermost 75 :z5 Like numerals of reference designate like edges of said flange and the furcated arms, of parts throughout the several views. which it forms a part, meeting at an angle,

Referring to the drawings, the numeral 1 so as to constitute an approximate V shape, indicates a stave of a barrel in which an orwhereby the Spanner is made to conform to dinary bushing 2 is inserted in the screwthe shape of the hexagonal enlargement of 8o 3o threaded bung-aperture thereof. the bolt.

The numeral 3 indicates a disk, forming Prior to applying myimproved buugitwill part of my improved bung, provided with a be understood that the inner disk 3 is not central screwthreaded aperture and having screwed up against the face of the rubber ring its opposing faces of substantially truncated close enough to expand the latter. In view 85 35 conical form, with a series of short beveled of this no trouble is experienced in inserting ribs iformed upon the inner face and radithe bung in place. After adjustment, howating from the central opening. Adapted to ever, the Spanner is passed under the head 9 pass through this opening is a bolt 5, said and made to engage the hexagonal enlargebolt being threaded between the plane porment. The bolt is now readily turned so as 9o n 4o tions 6 and 7, the threads extending throughto be forced inwardly, and thus bring disk 3 out the greater portion of its length. The outwardly against the face of the rubber bolt is further formed next to the part 7 into washer. When the bolt has been screwed ina hexagonal enlargement 8 and finally terwardly far enough to allow the hexagonal enminates in the usual headed portion 9, the largement to bearagainst the collar,the latter 95 45 circumferential edge thereof extending out also is made to exert a pressure against the beyond the hexagonal part. rubber ring. The result of these two press- Supported upon the disk andvsurroundures against the opposite faces of the ring ing'the bolt is a ring 10, of rubber or other is of course to spread said ring outwardly elastic material, of a form substantially cyl against the bushing, thus making a perfect roo ,f 5o lindrical upon its outer surface and its inner liquid and air tight closure of the bung-hole. surface beveled from the ends inwardly, form- When it is desired to remove the bung, the

e savia bolt is screwed outwardly, whereby pressure against the rubber ring is relieved. After this the bung may be readily pulled out by manipulating the tool. It will thus be seen that the tool or Spanner provides for tightening, loosening, and removing the bung without changing the tool.

It sometimes happens that the bore of the bushing becomes coated with pitch, resultingin the rubber ring lO adhering closely thereto. cult to remove the bung by a direct pull thereon without first turning the rubber ring and loosening same. To provide for this, I form the beveled ribs 4: upon the inner face of disk 3, so that after the bolt has been screwed outwardly a certain distance these ribs will be engaged by the transverse pin 16. Before such engagement the bolt of course turns independently of the other parts-that is to say, turns in the aperture of the disk Without imparting a corresponding rotation thereto. The moment the pin and beveled lugs contact, however, the disk is made to rotate, and as the rubber ring is locked thereto by the engagement of the ribs upon the outer face of the disk with the corresponding grooves of the ring said ring is also rotated, and in addition thereto the frustoconical collar. Of course the moment the ring is rotated, if any pitch upon the bushing has caused an adherence between the latter and the ring said ring is loosened in this way and the bung removed withoutdifficulty.

The present invention differs from that described in my former application, Serial No. 419,453, filed January 27,1892, not only in the provision of the feature just described, but also in providing a bolt which is not made integral with the in'ner disk and without having upon its outer end a removable nut. Practice has demonstrated that such construction is open to this objection-t'. e., the facility with which the nut at any time may be removed either by accident or other causes and resulting in a loss of the nut as well as destroying the liquid and air tight closure. In the present arrangement the outer nut is entirely dispensed with, as clearly shown, and the bolt made separate from any of the other parts and provided upon its outer end with the headed portion and upon its inner end with means for preventing its withdrawal independently of the withdrawal of the entire bung. It will thus be seen that the disadvantage pointed out is entirely absent in this device and the removal of the bung rendered extremely difficult without the employment of the special tool or Spanner illustrated.

Having thus described my invention, what I claim, and desire to secure by Letters Patent of the United States, isn

l. The combination, with a bung, ofa screw- In such case it becomes quite difboit working therethrough, said bolt provided upon its inner end with a contacting-surface constructed to act against the inner face of the bung upon the unscrewing of the bolt and to rotate said bung therewith, substantially as set forth.

2. In a bung, the combination of an elastic ring, disks acting against opposite faces of said ring and a screw-bolt passing through said disks and drawing the same together to expand the ring, said bolt provided upon its inner end with a contacting-surface constructed to act against the inner face of the inner disk upon the unscrewing thereof and to rotate the bung therewith, substantially as set forth.

3. In a bung, the combination of an elastic ring, disks acting against the opposite faces of said ring,'the inner disk provided upon its inner face with a series of radial ribs, and a screw-bolt passing through the disks and drawing the same together to expand the ring, said bolt provided upon its inner end with a transverse pin, substantially as set forth.

4. In abung, the combination of an elastic ring substantially cylindrical upon its outer surface and its inner surface -beveled from the ends inwardly, forming tapering'faces, a disk fitting against theinner tapering face of the ring, a frusto-conical collar iitting against the outer tapering face, and a screw-threaded bolt passing through an aperture in the collar and through a threaded opening in the disk, said bolt provided upon its inner end with a contacting-surface constructed to act against the inner face of the disk upon the unscrewing thereof and to rotate the bung therewith, substantially as set forth.

5. In a bung, the combination of an elastic ring, disks acting against opposite faces of said ring7 and a screw-bolt passing through the disks, said bolt provided upon its outer end with an'integral headed portion and upon its inner end with means for preventing its entire withdrawal from the bung, substantially as set forth.

6. In a bung, the combination of an elastic ring, disks acting against opposite faces of said ring, and a screw-bolt provided upon its inner end with means for preventing its entire withdrawal from the bung, near its outer end with an enlargement, and at its eXtremity with a headed portion having its edge extending laterally beyond the enlargement, said enlargement adapted to be engaged by a tool or Spanner passing beneath the headed portion, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

JOI-IN BAEUMLE.

Witnesses:

C. T. BENEDIGT, ARTHUR L. MonsnLL.

IOO

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